28 PNEG-552 100 Series Dryer
6. Dryer Start-Up
Staged Batch Operation
1. Turn the CONTROL POWER switch to ON.
2. With load, unload, fan and burner turned OFF, turn the drying mode switch to continuous then push
the dryer power start switch to arm the safety circuit. Turn the LOAD switch to ON and Fill the dryer
with grain. The load auger will stop when full if the LOAD TILT Switch is installed and set properly.
3. Turn the drying mode switch to staged batch.
4. Open the main fuel supply valve on the tank if using LP gas, or the valve in the fuel supply line if
using natural gas. Turn ON the electric shut off, Maxon valve (if so equipped), or open the manual
shut off valve to allow fuel flow to the dryer.
5. Set switches to the following settings:
Fan/Heater Switch Settings
6. Make sure the load auger switch is set to AUTO. In both the AUTO and MANUAL position, the
grain level switch will automatically keep the dryer full of grain. In the AUTO position, the dryer will
shut down after the preset time period on the out of grain timer, or if the grain flow to the dryer
is interrupted.
7. To properly set the correct dry, cool and unload time for various moisture content grains, see the
chart on Page 30.
8. To start the drying operation, push the dryer power start button.The controller will start all the dryer
components in their proper order. If any of the selected switches are improperly positioned for
staged batch drying, the display will indicate the proper switch position, and will not allow the dryer
to operate until the position of the switch is corrected.
9. The fan will start and airflow is checked.
Load AUTO (For timed shut down when out of grain. ON will shut off auger when
full, but will not shut dryer down when out of grain.)
Fan AUTO (To Stop during Unloading. ON to Continue Cooling during Unloading.)
Heater AUTO (For Dry and Cool. ON for All Heat.)
Unload 1 Speed
Fan Setting Heater Setting Fan Function Heater Function
AUTO AUTO Fans stay ON during dry and cool cycle only Burners stay ON during dry timer
cycle only
AUTO ON Fans stay ON during dry and cool cycle only Burners stay ON during dry and cool
ON ON Fans are ON continuously Burners are ON continuously
ON AUTO Fans are ON continuously Burners shut down at the end of the
dry cycle
At the end of the dry cycle in staged batch, the fans and heaters will continue running if the MOISTURE CONTROL is “ON”,
until the preset temperature on the moisture control thermostat is reached.